[INFO] cloning repository https://github.com/donhk/rust-capnproto
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/donhk/rust-capnproto" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdonhk%2Frust-capnproto", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdonhk%2Frust-capnproto'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2e333fd10b2bd77210fd799e6c5d35618a2b70ec
[INFO] checking donhk/rust-capnproto against master#f4d794ea0b845413344621d89f6c945062748485 for pr-119369
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdonhk%2Frust-capnproto" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/donhk/rust-capnproto on toolchain f4d794ea0b845413344621d89f6c945062748485
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f4d794ea0b845413344621d89f6c945062748485" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/donhk/rust-capnproto
[INFO] finished tweaking git repo https://github.com/donhk/rust-capnproto
[INFO] tweaked toml for git repo https://github.com/donhk/rust-capnproto written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/donhk/rust-capnproto already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f4d794ea0b845413344621d89f6c945062748485" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking donhk/rust-capnproto against try#3832a95f57d4260fb5641e183906f49b4e5c6bdd for pr-119369
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdonhk%2Frust-capnproto" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/donhk/rust-capnproto on toolchain 3832a95f57d4260fb5641e183906f49b4e5c6bdd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/donhk/rust-capnproto
[INFO] finished tweaking git repo https://github.com/donhk/rust-capnproto
[INFO] tweaked toml for git repo https://github.com/donhk/rust-capnproto written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/donhk/rust-capnproto already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded capnpc v0.17.1
[INFO] [stderr]   Downloaded capnp v0.17.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bf5baf2de6f88b23e754afb5aa3e9fd3659948edc8de598c12a66cd180a85ae
[INFO] running `Command { std: "docker" "start" "-a" "7bf5baf2de6f88b23e754afb5aa3e9fd3659948edc8de598c12a66cd180a85ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bf5baf2de6f88b23e754afb5aa3e9fd3659948edc8de598c12a66cd180a85ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bf5baf2de6f88b23e754afb5aa3e9fd3659948edc8de598c12a66cd180a85ae", kill_on_drop: false }`
[INFO] [stdout] 7bf5baf2de6f88b23e754afb5aa3e9fd3659948edc8de598c12a66cd180a85ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95a3bb5492c5da950fc50c9fef15383a2c9ebceda96c8247452a2e556ec36e8b
[INFO] running `Command { std: "docker" "start" "-a" "95a3bb5492c5da950fc50c9fef15383a2c9ebceda96c8247452a2e556ec36e8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling capnp v0.17.0
[INFO] [stderr]    Compiling capnpc v0.17.1
[INFO] [stderr]    Compiling rust-capnproto v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `rust-capnproto v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rust-capnproto-b5d7e01be2d204b7/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   could not open file "src/schemas/foo_capnp.rs" for writing: Read-only file system (os error 30)
[INFO] [stderr]   thread 'main' panicked at build.rs:10:16:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Error { kind: Failed, description: "Error while trying to execute `capnp compile`: Failed: Read-only file system (os error 30)." }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x556188531e56 - std::backtrace_rs::backtrace::libunwind::trace::h74634450a62a0374
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stderr]      1:     0x556188531e56 - std::backtrace_rs::backtrace::trace_unsynchronized::ha836a5ebd0c2c57f
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x556188531e56 - std::sys_common::backtrace::_print_fmt::h066e5dd7a49b5790
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x556188531e56 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h783e03fddba56e85
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x556188559820 - core::fmt::rt::Argument::fmt::ha42ae3d70a0c86ea
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x556188559820 - core::fmt::write::h6a55d7f6d16506f5
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/core/src/fmt/mod.rs:1120:17
[INFO] [stderr]      6:     0x55618852fa5f - std::io::Write::write_fmt::hc3dc4c9ef338db98
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/io/mod.rs:1810:15
[INFO] [stderr]      7:     0x556188531c34 - std::sys_common::backtrace::_print::hda4e90eaa472b189
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x556188531c34 - std::sys_common::backtrace::print::h0cf7931891ab0ca2
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x5561885337e7 - std::panicking::default_hook::{{closure}}::h91bd06de4ab93fc4
[INFO] [stderr]     10:     0x556188533549 - std::panicking::default_hook::hf81cb6d720959884
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/panicking.rs:292:9
[INFO] [stderr]     11:     0x556188533c78 - std::panicking::rust_panic_with_hook::h241dd239c5bf20a1
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/panicking.rs:779:13
[INFO] [stderr]     12:     0x556188533b52 - std::panicking::begin_panic_handler::{{closure}}::hfed49a91a00b7435
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/panicking.rs:657:13
[INFO] [stderr]     13:     0x556188532356 - std::sys_common::backtrace::__rust_end_short_backtrace::h094e291354d2fdb5
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x5561885338b0 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/panicking.rs:645:5
[INFO] [stderr]     15:     0x55618845a005 - core::panicking::panic_fmt::ha4ab7dd8f759e624
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/core/src/panicking.rs:72:14
[INFO] [stderr]     16:     0x55618845a5a3 - core::result::unwrap_failed::h746c7687773750df
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/core/src/result.rs:1649:5
[INFO] [stderr]     17:     0x55618845ad7b - core::result::Result<T,E>::unwrap::h0b099513541a89a1
[INFO] [stderr]     18:     0x55618845b697 - build_script_build::main::hbe6d5616d337927a
[INFO] [stderr]     19:     0x55618845aa73 - core::ops::function::FnOnce::call_once::hafce80216fd3be78
[INFO] [stderr]     20:     0x55618845a936 - std::sys_common::backtrace::__rust_begin_short_backtrace::h488f77848902a1f4
[INFO] [stderr]     21:     0x55618845a989 - std::rt::lang_start::{{closure}}::h915a26218226fe67
[INFO] [stderr]     22:     0x55618852bc81 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::he1c0f8b93cc5f44e
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     23:     0x55618852bc81 - std::panicking::try::do_call::h2eea72a61a8f7186
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/panicking.rs:552:40
[INFO] [stderr]     24:     0x55618852bc81 - std::panicking::try::h82d2bc0cd9351fe4
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/panicking.rs:516:19
[INFO] [stderr]     25:     0x55618852bc81 - std::panic::catch_unwind::h1b7d3dfabe45843a
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/panic.rs:142:14
[INFO] [stderr]     26:     0x55618852bc81 - std::rt::lang_start_internal::{{closure}}::ha9b7e0b7c1731e69
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/rt.rs:148:48
[INFO] [stderr]     27:     0x55618852bc81 - std::panicking::try::do_call::h7a06456b051c24ef
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/panicking.rs:552:40
[INFO] [stderr]     28:     0x55618852bc81 - std::panicking::try::h46e76671e0100de4
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/panicking.rs:516:19
[INFO] [stderr]     29:     0x55618852bc81 - std::panic::catch_unwind::h20287faf7d672a1c
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/panic.rs:142:14
[INFO] [stderr]     30:     0x55618852bc81 - std::rt::lang_start_internal::hff087a1dd312e1f3
[INFO] [stderr]                                  at /rustc/3832a95f57d4260fb5641e183906f49b4e5c6bdd/library/std/src/rt.rs:148:20
[INFO] [stderr]     31:     0x55618845a967 - std::rt::lang_start::hfa8cf5d076c4443b
[INFO] [stderr]     32:     0x55618845b6e5 - main
[INFO] [stderr]     33:     0x7f73b3e41d90 - <unknown>
[INFO] [stderr]     34:     0x7f73b3e41e40 - __libc_start_main
[INFO] [stderr]     35:     0x55618845a865 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "95a3bb5492c5da950fc50c9fef15383a2c9ebceda96c8247452a2e556ec36e8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95a3bb5492c5da950fc50c9fef15383a2c9ebceda96c8247452a2e556ec36e8b", kill_on_drop: false }`
[INFO] [stdout] 95a3bb5492c5da950fc50c9fef15383a2c9ebceda96c8247452a2e556ec36e8b